Comparison

Nautlius vs LibreDict

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nautlius

This app provides a comprehensive suite of tools for STEM education and professional use. It offers engineering calculators, unit conversions, property lookups, and simulation capabilities. Students and professionals can utilize it for quick calculations and data analysis.

Highlights
  • Engineering calculators
  • Free body diagrams
  • Property lookup tables
  • Experiment simulations
  • Unit conversion
Features
Read full description

Nautilus is an engineering and STEM toolbox for students and professionals. Features: - Engineering Calculators: Choose from hundreds of equations and subjects for quick calculations - Free Body Diagrams: Quickly copy and paste free body diagrams with calculated values - Property Lookup: Easily find values from tables and properties - Simulations: Run your own simulations for various experiments - Unit Conversion: Convert between hundreds of units Nautilus does not contain any subscriptions or in-app purchases.

About

LibreDict

This app provides a fast, offline dictionary with over 300,000 words across five languages. It prioritizes privacy with no ads or tracking, offering a clean interface and customizable search results.

Highlights
  • 100% Offline access
  • Five built-in dictionaries
  • Supports four app languages
  • Smart Arabic search
  • Color-coded results
  • Customizable dictionary order
  • Import custom dictionaries
Read full description

LibreDict is a lightweight, ultra-fast dictionary built for focus and privacy. With over 300,000 words across five built-in dictionaries, you can search and learn without ever needing an internet connection. Key features: - 100% Offline: Every dictionary lives on your device — perfect for travelers and students. - Five Dictionaries Included: English (WordNet), Russian–English, Spanish–English, English–Spanish, and Arabic–English. - Four App Languages: Use LibreDict in English, Russian, Spanish, or Arabic — with full right-to-left layout for Arabic. - Smart Arabic Search: Type Arabic words without diacritics and still find the vocalized entries. - Color-Coded Results: Each dictionary has its own colored stripe, so you instantly see where a word comes from. - Your Order, Your Way: Sort by relevance or put your preferred dictionaries first, and drag to reorder them. - Expandable Library: Import your own custom dictionaries via .json or .sqlite files. - Privacy First: No ads, no tracking, no accounts, no data collection. - Minimalist Design: A clean, fast interface optimized for readability. - Manage Sources: View detailed statistics for each dictionary and toggle any of them on or off. LibreDict stays out of your way — just you and the words.

Screenshots

Nautlius4 screens
LibreDict3 screens

Verdict

The call

The clearest difference is rating: Nautlius at 5.0 against LibreDict's 3.7. On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Nautlius holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Scorecard1 real difference · 8 level
Nautlius versus LibreDict: the parameters behind the verdict, then further details
ParameterNautliusLibreDict
PriceFreeFree
Rating5.0 (2 ratings) — better3.7 (3 ratings)
Number of ratings23 — better
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size13 MB103 MB
Age rating4+4+
DeveloperTroy HustedKIRILL YUKHIN

In-app purchases

None

Nautlius

No in-app purchases

None

LibreDict

No in-app purchases

Questions

Is Nautlius free?
Nautlius is free to download, with no in-app purchases.
Is LibreDict free?
LibreDict is free to download, with no in-app purchases.
Which has better reviews, Nautlius or LibreDict?
Nautlius is rated higher. Nautlius averages 5.0 out of 5 from 2 ratings, while LibreDict averages 3.7 from 3 ratings.
Do Nautlius or LibreDict have ads?
Neither Nautlius nor LibreDict shows ads.

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